Techno-economic assessment of bioleaching for metallurgical by-products

dc.contributor.authorTezyapar Kara, Ipek
dc.contributor.authorWagland, Stuart T.
dc.contributor.authorCoulon, Frederic
dc.date.accessioned2024-04-24T10:55:50Z
dc.date.available2024-04-24T10:55:50Z
dc.date.issued2024-04-20
dc.description.abstractThis study focused on the economic feasibility of two potential industrial-scale bioleaching technologies for metal recovery from specific metallurgical by-products, mainly basic oxygen steelmaking dust (BOS-D) and goethite. The investigation compared two bioleaching scaling technology configurations, including an aerated bioreactor and an aerated and stirred bioreactor across different scenarios. Results indicated that bioleaching using Acidithiobacillus ferrooxidans proved financially viable for copper extraction from goethite, particularly when 5% and 10% pulp densities were used in the aerated bioreactor, and when 10% pulp density was used in the aerated and stirred bioreactor. Notably, a net present value (NPV) of $1,275,499k and an internal rate of return (IRR) of 65% for Cu recovery from goethite were achieved over 20-years after project started using the aerated and stirred bioreactor plant with a capital expenditure (CAPEX) of $119,816,550 and an operational expenditure (OPEX) of $5,896,580/year. It is expected that plant will start to make profit after one year of operation. Aerated and stirred bioreactor plant appeared more reliable alternative compared to the aerated bioreactor plant as the plant consists of 12 reactors which can allow better management and operation in small volume with multiple reactors. Despite the limitations, this techno-economic assessment emphasized the significance of selective metal recovery and plant design, and underscored the major expenses associated with the process.en_UK
dc.description.sponsorshipThis research was funded by the European Regional Development Fund as part of the Interreg Northwest Europe project “Regeneration of past metallurgical sites and deposits through innovative circularity for raw materials” (REGENERATIS) (NWE918).en_UK
dc.identifier.citationKara IT, Wagland ST, Coulon F. (2024) Techno-economic assessment of bioleaching for metallurgical by-products. Journal of Environmental Management, Volume 358, May 2024, Article number 120904en_UK
dc.identifier.issn0301-4797
dc.identifier.urihttps://doi.org/10.1016/j.jenvman.2024.120904
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/21258
dc.language.isoen_UKen_UK
dc.publisherElsevieren_UK
dc.rightsAttribution 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.subjectAcidithiobacillus ferrooxidansen_UK
dc.subjectBiohydrometallurgyen_UK
dc.subjectSecondary resourcesen_UK
dc.subjectTechno-economic assessmenten_UK
dc.subjectEconomic feasibilityen_UK
dc.titleTechno-economic assessment of bioleaching for metallurgical by-productsen_UK
dc.typeArticleen_UK
dcterms.dateAccepted2024-04-10

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